This document provides an overview of key marketing concepts including defining marketing, the marketing mix (4Ps), market segmentation, product life cycle, and methods of conducting market research. Marketing is defined as identifying, anticipating, and satisfying customer needs profitably. The role of marketing is to identify customer needs and provide desired goods/services to generate profits. The marketing mix consists of product, price, place, and promotion. Market segmentation involves dividing the market into distinct groups based on factors like demographics. Products go through different stages in their life cycle from development to decline. Market research can be primary research collecting new data or secondary research using existing data sources.